Hf ingestion

[XiaohanZhangCMU]

Description of changes:

Add a ingestion helper utility for Huggingface datasets downloading. Building on snapshot_download, some improvements include

• Enable resume = True. retry when bad network happens
• Disable progress_bar to prevent browser/terminal crash
• Add a monitor to print out file stats every 15 seconds

Issue #, if available:

Merge Checklist:

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